body {
    padding: 0;
    margin: 0;
}
.header {
    height: 56px;
    border-bottom: solid 1px #bbb;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
}
.title {
    font-size: 18px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #eee;
    border-radius: 20px;
    padding: 5px 10px;
    margin-left: 10px;
}
.tools {
    height: 56px;
    display: flex;
    align-items: center;
}
.dot {
    width: 35px;
    font-size: 35px;
    color: #888;
    transform:rotate(-90deg);
}
.logo {
    height: 40px;
    margin-right: 10px;
}